Groundwater lake
A groundwater lake is created in a pit that is deeper than the level of the groundwater at the respective location.
Quarry pond
Groundwater lakes , which are created by excavating soil , are called quarry ponds or quarry ponds. Many groundwater lakes were created through sand or gravel mining in the area of river valleys with near-surface groundwater. In individual cases, deeper underground groundwater flows (e.g. the groundwater flow in the Tiefen-Aitrach-Rinne ) were exposed as a result of the gravel extraction . The Aitrach gravel pit nature reserve was able to develop there.
But even in open-cast mining areas , groundwater lakes are often created after the completion of groundwater lowering measures that keep the mining area dry. The artificial lowering of the groundwater in the opencast mine is often enormous, reaching a depth of up to 500 meters, so that the flooding from opencast mines to open- cast mining lakes takes a very long time. It is therefore often supplemented by flooding from surface waters.
Burglary Lake
Groundwater lakes are created naturally. B. by incursions of geological cavities, z. B. the collapsed volcano Kerið in Iceland .
However, other subsidence of the earth, such as the collapse of underground cavities, such as those caused by mining , can cause groundwater to flow into the pit that has been created.
Underground groundwater lakes
Occasionally, subterranean groundwater quantities that are in subterranean sinks are also referred to as groundwater lakes.
Demarcation from the pressurized water lake
Areas of water that arise only temporarily due to increased groundwater levels during floods and spring lakes, i.e. groundwater levels rising to the surface that merge into surface watercourses, are usually referred to as pressurized water lakes, but not as groundwater lakes .
Individual evidence
- ↑ At the cinder crater of the Kerid volcano . In: arcticfoto.com .
- ↑ Journal article: New center for Strassfurt - A groundwater lake as a consequence of the subsidence - Fraunhofer IRB - baufachinformation.de . In: baufachinformation.de .
- ↑ Lucerne-direct . In: luzern-direkt.ch . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ^ "Time travel": Oil drilling in Vorarlberg - Vorarlberg magazine . In: orf.at .
